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Load balancing voice vlans between two Cisco4506

Unanswered Question
Oct 11th, 2006
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I have try load balancing different voice vlans on 2 Cisco 4506 using hSRP and it don't work. Wonder any one have try out this ! Or is it that voice does not support asymmetric routing

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leonvd79 Wed, 10/11/2006 - 22:42
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HSRP forwards all IP traffic. I can't help you without configuration details.


Please post your configuration.


--Leon

Aaron Harrison Wed, 10/11/2006 - 22:43
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Hi


What exactly is your topology?


If you have two 4506s as a core or distribution layer, with multiple access switches attached... and are trying to set each 4506 as the HSRP DG for alternate subnets this will work to load balance the traffic, but only if your STP topology mirrors your Layer 3/HSRP setup.


Basically what this comes down to is that if 4506-A is the HSRP active member for VLAN1, it should also be the STP root for VLAN1. Likewise, if 4506-B is the active HSRP member for VLAN2, then is should be the STP root for VLAN2.


Regards


Aaron


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mahmoodmkl Wed, 10/11/2006 - 22:55
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Hi


It is simple as you configure HSRP for data vlans.


for eg:


on u r first 4506 try this


interface vlan 2

ip address 10.1.1.2 255.255.255.0

standby 1 ip 10.1.1.1

standby 1 priority 100

standby 1 preempt


and on second


interface vlan 2

ip address 10.1.1.3 255.255.255.0

standby 1 ip 10.1.1.1

standby 1 priority 150

standby 1 preempt


and one thing i would suggest is that is ur both switches are core.if they are core make sure that u configure one as root for the vlans and second as secondry root for the vlans.


Thanks

Mahmood

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